Insulating medium for an electric energy transmission device
An insulating medium for an electric energy transmission device is a fluid at room temperature and atmospheric pressure and has at least the following components ≥50% by volume to ≤98% by volume of synthetic air, and ≥2% by volume to ≤50% by volume of an organic fluorine compound. An electric arc extinguishing medium and a fluid-insulated electric energy transmission device are also provided.
1. An insulating medium for an electric energy transmission device, the insulating medium comprising:
synthetic air comprising ≥70% to ≤99% by volume of the synthetic air of nitrogen and 1% to 30% by volume of the synthetic air of oxygen in an amount of from ≥50% to ≤98% by volume of the insulating medium; and
at least one fluoroorgano compound in a total amount of from ≥2% to ≤50% by volume of the insulating medium,
wherein the insulating medium for the electric energy transmission device being is a fluid at room temperature and atmospheric pressure.
2. The insulating medium according to claim 1 , wherein the insulating medium is substantially free of at least one of water, carbon dioxide, and sulfur hexafluoride.
3. The insulating medium according to claim 1 , wherein the at least one fluoroorganic compound is selected from a group consisting of fluoronitriles, fluoroethers, fluoroolefins, fluoroketones, and perfluoroalkylnitriles.
4. The insulating medium according to claim 1 , where the synthetic air comprises an amount of from ≥85% to ≤98% by volume of the insulating medium and at least one fluoroorgano compound in a total amount of from ≥2% to ≤15% by volume of the insulating medium.
5. The insulating medium according to claim 4 , where the synthetic air comprises an amount of 95% by volume of the insulating medium and at least one fluoroorgano compound in a total amount of from 5% by volume of the insulating medium.
6. An electric arc extinguishing medium for a high-voltage switch, the electric arc extinguishing medium comprising:
synthetic air comprising ≥70% to ≤99% by volume of the synthetic air of nitrogen and 1% to 30% by volume of the synthetic air of oxygen in a total amount of from ≥50% to ≤98% by volume of the electric arc extinguishing medium; and
at least one fluoroorgano compound in a total amount of from ≥2% to ≤50% by volume of the electric arc extinguishing medium,
wherein the electric arc extinguishing medium for the high-voltage switch is a fluid at room temperature and atmospheric pressure.
7. A fluid-insulated electric energy transmission device, comprising:
an insulation space closed in a fluid-tight manner; and
an insulating medium disposed in said insulation space or in a reservoir to be connected to said insulation space,
wherein said insulating medium is a fluid at room temperature and atmospheric pressure, and said insulating medium comprises:
synthetic air comprising ≥70% to ≤99% by volume of the synthetic air of nitrogen and 1% to 30% by volume of the synthetic air of oxygen in an amount of from ≥50% to ≤98% by volume of the insulating medium, and
at least one fluoroorgano compound in a total amount of from ≥2% to ≤50% by volume of the insulating medium.
8. The fluid-insulated electric energy transmission device according to claim 7 , wherein the fluid-insulated electric energy transmission device is at least one of a high-voltage switch and a fluid-insulated tube conductor.
9. The fluid-insulated electric energy transmission device according to claim 7 , wherein:
the fluid-insulated electric energy transmission device is a high-voltage switch;
a first switching unit, a second switching unit and a third switching unit are disposed in said insulation space of the high-voltage switch;
said first switching unit and said third switching unit each have at least one of a parting switch or a grounding switch; and
said second switching unit is a power switch.
10. The fluid-insulated electric energy transmission device according to claim 9 , wherein said power switch is a vacuum switch.